package lab02.Test23;

import java.util.Calendar;
import java.util.Date;
import java.util.Scanner;

public class Test {
    public static void main(String[] args) {
        Scanner scanner=new Scanner(System.in);
        System.out.println("请输入你的生日，格式形如：2017-09-21:");
        Calendar calendar=Calendar.getInstance();
        String str=scanner.nextLine();
        String year=str.substring(0,4);
        String month=str.substring(5,7);
        String day=str.substring(8);
        calendar.set(Integer.parseInt(year),Integer.parseInt(month),Integer.parseInt(day));
        System.out.println("输出对应的是星期几:");
        int week=calendar.get(Calendar.DAY_OF_WEEK);
        switch(week){
            case 1:System.out.println("MONDAY");break;
            case 2:System.out.println("TUESDAY");break;
            case 3:System.out.println("WEDNSSDAY");break;
            case 4:System.out.println("THESDAY");break;
            case 5:System.out.println("FIRDAY");break;
            case 6:System.out.println("SATUATFAY");break;
            default:System.out.println("SUNDAY");break;
        }
        Date date2=new Date();
        calendar.set(2017,Integer.parseInt(month),Integer.parseInt(day));

        Date date1 = calendar.getTime();
        long countDay=(date1.getTime()-date2.getTime())/(24*60*60*1000);
        if(countDay<0){
            calendar.set(2018,Integer.parseInt(month),Integer.parseInt(day));
            date1=calendar.getTime();
            countDay=(date1.getTime()-date2.getTime())/(24*60*60*1000);
        }
        System.out.println("距离你的生日还有"+countDay+"天");
    }
}
